31287982

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{14081}}^1$

素因数の和:14195

約数の個数: 16

約数和(自身を含む): 51709104

約数和(自身を除く): 20421122

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 14081, 28162, 154891, 309782, 1422181, 2844362, 15643991, 31287982]

約数ペア:

[(1, 31287982), (2, 15643991), (11, 2844362), (22, 1422181), (101, 309782), (202, 154891), (1111, 28162), (2222, 14081)]